TY - JOUR T1 - A Need for Urban IPM JF - Arboriculture & Urban Forestry (AUF) SP - 204 LP - 207 DO - 10.48044/jauf.1981.050 VL - 7 IS - 8 AU - J.T. Walker Y1 - 1981/08/01 UR - http://auf.isa-arbor.com/content/7/8/204.abstract N2 - ER -